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Priority claimed from US10/097,799external-prioritypatent/US6730234B2/en
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Publication of JO2313B1publicationCriticalpatent/JO2313B1/en
A method for regenerating a used halide fluid comprising a density greater than 9.0 lbs/gal. and containing both soluble and insoluble impurities. This method comprises the steps of (1) adding acid to the used halide fluid so that the pH is within a range of approximately 0 to 10.0; (2) contacting the used halide fluid with halogen to increase the density to at least 10.0 lbs./gal., adjust the desired true crystallization temperature of the fluid and oxidize soluble impurities; (3) adding a reducing agent while maintaining the temperature at a minimum of 10 DEG C.; (4) contacting the fluid with an alkali to neutralize excess acid; and (5) separating any suspended solid impurities from the fluid.
JO200324A2002-03-142003-03-09Method for regeneration of used halide fluids
JO2313B1
(en)